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Q:

$$sinθ[(1-tanθ)tanθ+sec^2θ]\over (1-sinθ)tanθ(1+tanθ)(secθ+tanθ)$$ इसके बराबर है:

  • 1
    cosecθsecθ
  • 2
    -1
  • 3
    1
  • 4
    sinθcosθ
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Answer : 3. "1"

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